System Startup, Configuration, and Shutdown Reference Manual (32650-90892)

232 AppendixG
UPS and UPS Monitor/iX Software
Configuring a UPS Device
7. Add each UPS by entering its logical device number in the Ldev field and UP10D12 in
the Profile Name field. When you have added all UPS devices, press
Save Data.
8. Press the
Validate Link/DTS softkey to cross-validate the DTC configuration with the
SYSGEN configuration.
9. Once validation is complete, press
Prior Screen until you see the Open Configuration
File screen, and then press
Exit Program to exit NMMGR.
If you see a message that the NETXPORT subsystem has not been validated, ignore it
and exit the program.
10.Shut down the system.
11.Turn power to the DTC hardware off and then on again to download the correct baud
rate for the UPS port to the DTC hardware. (On some systems, cycling the power to a
DTC may require you to unplug it and plug it in again.)
12.Reboot the system to make the new configuration effective.
To Use UPS Monitor/iX Software
Once you have configured UPS devices on the system, they will automatically be
monitored by the UPS Monitor/iX software. This software causes the UPS devices to
emulate the traditional battery backup method of system powerfail handling and recovery.
The UPS Monitor/iX process behaves in one of two ways, depending on the system on
which Release 5.0 of MPE/iX has been installed:
• When installed on a system that has been configured with UPS devices, UPS
Monitor/iX runs continually while the system is up to monitor all of the UPS devices for
power failure and any other hardware status conditions. It reports these conditions to
the system operator’s console via console messages and records them in the system log
file.
• When installed on an old system that does not use UPS devices, UPS Monitor/iX is
launched at startup, discovers that there are no UPS devices on the system, and
terminates itself. In this case, the system uses the existing battery backup method of
system power failure protection.
NOTE UPS monitoring is event number 148 in the system log files. The default is
ON (i.e., UPS hardware conditions are recorded in the files) regardless of
whether the system has UPS power fail protection or not. In the latter case,
when no UPS devices have been configured, the system log files will receive
and record two UPS-related messages each time the system starts: one
indicating that the UPS Monitor/iX process has been launched and a second
message which says that no UPS devices are found in the I/O configuration.
System Behavior When AC Power Fails
Whenever input AC power to any UPS device fails, the UPS hardware switches to internal
battery operation to continue to deliver output AC power to the computer equipment. No
actual power failure occurs at the computer equipment itself and, as a result, the SPU